an insanity defense? some court observers here expect that. or perhaps self defense. a claim that brittany attacked him before he killed her. as brittany's family awaits a trial, her friends look after brittany's dogs. >> they're in great shape. happy, healthy. they're really good dogs, you know. brittany would have wanted that. she would have wanted, you know, somebody that loves them to have them. >> and her friends mourn, as does her family. >> i guess you have a point from which you move on, but there really isn't closure. and that actually is something that the homicide detectives know. there really isn't closure. it's a cliche people use, but there is no closure. >> brittany tavar lived life on her own terms. naive maybe, reckless sometimes. and it cost her dearly. >> she just thought she was invincible. she didn't think anything bad would happen. >> that's part of who she was. she did have a very big heart. >> she did and lived out loud and was exuberant and generous and for those who loved her, is eternally missed for all those things. >> she was my sister and